40pce 1/4" & 3/8" Drive SAE/ Metric Socket Set. Includes 3/8" Dr. ratchet, 75mm 3/8" ext. bar, 1/4" (M) x 3/8" (F) adaptor, 3/8" Dr. x 21mm spark plug socket, spin disc, spinner handle. 14pce 1/4" Dr. sae sockets sizes: 5/32- 9/16". 3pce 1/4" dr. sae sockets. 14x 1/4" dr. metric sockets: 4-13mm. 2x 3/8" dr. sockets 15 & 16mm. Storage case